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Katie Dunn Road over I 55

Lincoln County, Mississippi · rated Good in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Katie Dunn Road over I 55 in Lincoln County, Mississippi, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
It was built in 1966, making it 59 years old at the 2025 inventory.
It carries about 190 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 218 of the 355 inventoried bridges in Lincoln County rated good (61.4%); 18 (5.1%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Prestressed concrete stringer or multi-beam girder
Length	about 383 ft
Location	11.4 Mi N Pike Cl
NBI structure number	410005504303580
Condition class	Good

Source: FHWA National Bridge Inventory, 2025 data as reported by the Mississippi department of transportation.

Bridge	Built	Vehicles/day	Condition
I 55 over Unnamed Stream	1965	21,000	Fair
I 55 over Doolittle Branch	1966	21,000	Fair
I 55 over Bogue Chitto River	1966	12,500	Good
I 55 over Zetus Road	1966	12,500	Good
I 55 over Zetus Road	1966	12,500	Good
I 55 over Brookway Blvd	1966	12,500	Good